Sites.selected not working as expected

Question

Hi,

I want to use Microsoft Search API (https://learn.microsoft.com/en-us/graph/search-concept-overview) for searching. I also want to restrict the search on particular sites. I'm aware I can pass the site-names in query to filter the search, but I want to restrict the access to sites based on permissions. On the app registered in Azure, I have used Sites.Selected and given permission to only 1 site. Then, I have generated user access token using https://learn.microsoft.com/en-us/graph/auth-v2-user?context=graph%2Fapi%2F1.0&view=graph-rest-1.0 as Search API requires delegated token. I have passed scope as Files.Read.All while generating delegated access token. But while calling the Search API, I can see results from other sites as well.
Does Sites.Selected not work with Search API or is Files.Read.All searching across all sites?
How I can achieve site restriction using Search API?

Answer 1

Hi @captain_atharv

Hope you are doing great.

Per my research, Search Graph API only supports Delegated permissions type (work or school account) and you can check the permissions required for the same here.

Among these permissions, Files.Read.All will only search Sites libraries across all sites.

Sites.Selected is currently with the Application Permissions only.

For achieving site restriction using Search API, you can refer to a similar post.

Hope this helps.

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